The zoo said zookeepers and veterinary staff made the "difficult decision" to put down mountain lion Sierra earlier this week ...

Zoo staff made the difficult choice to euthanize one of the zoo’s two female mountain lions, Sierra, earlier in the week.

The Birmingham Zoo plans to open its new Cougar Crossing habitat later in March. The habitat's first resident, an orphaned ...

The Birmingham Zoo is the new home of an orphaned cougar from Montana that arrived in the South by FedEx. The Birmingham Zoo ...

The Phoenix Zoo lost one of its longtime residents this week. Sierra, a mountain lion, was humanely euthanized due to ...

The Phoenix Zoo lost its beloved mountain lion, Sierra, who was humanely euthanized this week after dealing with advanced renal failure. The Reid Park Zoo had to humanely euthanize their African lion, ...

Three young orphaned mountain lion cubs are recovering well after their recent rescue. The Oakland Zoo (@oaklandzoo) shared an update on three orphaned mountain lion cubs who were rescued after their ...

Zoo staff made the difficult choice to euthanize one of the zoo’s two female mountain lions, Sierra, earlier in the week.

The Phoenix Zoo lost its beloved mountain lion, Sierra, who was humanely euthanized this week after dealing with advanced renal failure. The Reid Park Zoo had to humanely euthanize their African ...